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Article
Bo T. Bonnevie, Auteur ; Adrian JFK Craig, Auteur ; Pat E. Hulley, Auteur ; Albert Schultz, Auteur ; Anthony J. Tree, AuteurRinging activity in the Eastern Cape province, South Africa, spanned 30 years, with three sites active concurrently over a 14-year period, and three sites over a 6-year period. In total, in the course of 714 ringing days, in all months, we handl[...]
Article
Bo T. Bonnevie, AuteurAdult survival rates of suburban Olive Thrushes (Turdus olivaceus) were estimated from the proportion of adults and juveniles in mist-net samples from the Eastern Cape and Western Cape provinces of South Africa. These survival rates were compare[...]
Article
Adrian J. F. K. Craig, Auteur ; George D. Underhill, Auteur ; Pat E. Hulley, Auteur ; Bo T. Bonnevie, Auteur
Article
Bo T. Bonnevie, Auteur ; H. Dieter Oschadleus, AuteurDans Ostrich (83(2) 2012)Primary wing moult patterns in southern African brood-parasitic viduines were compared with those of their estrildid hosts. We searched for similarities in the timing and duration of moult within these closely related species potentially arising[...]
Article
Bo T. Bonnevie, AuteurDuring the analysis of moult records from the SAFRING database it was found that for some datasets the records were not evenly distributed temporally and the proportion of moulting to non-moulting birds was not what would be expected from random[...]
Article
Bo T. Bonnevie, Auteur ; Maëlle Connan, Auteur ; Christopher D. McQuaid, AuteurEstimating total breeding populations (I) for species that exhibit biennial breeding is generally done from counts of individuals that breed in each year (N), but can be complicated by the fact that the proportion of individuals breeding varies [...]
Article
Adrian J. F. K. Craig, Auteur ; Bo T. Bonnevie, Auteur ; Patrick E. Hulley, Auteur ; George D. Underhill, AuteurBased on large samples of birds mist-netted in the Eastern Cape and the Western Cape, moult of the primary remiges in both Speckled Mousebirds Colius striatus and Red-faced Mousebirds Urocolius indicus occurred throughout the year with no region[...]
Article
Adrian J. F. K. Craig, Auteur ; Bo T. Bonnevie, Auteur ; H. Dieter Oschadleus, AuteurDans Ostrich (81(2) 2010)Using the SAFRING database and the Underhill-Zucchini model of primary moult, we analysed the timing of wing moult in Southern Red Bishops Euplectes orix in relation to sex and geographical region. Birds from the winter rainfall region in the so[...]
Article
Bo T. Bonnevie, Auteur
Article
Bo T. Bonnevie, AuteurRinging data from the South African bird ringing unit, SAFRING, were analysed to explore variations and trends in population parameters of the Sombre Greenbul Andropadus importunus in southern Africa. Adult and juvenile body mass increased south[...]
